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<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <title>Title</title>
  <link rel="stylesheet" href="stylesheets/reset.css">
  <link rel="stylesheet" href="stylesheets/index.css">
</head>
<body>


<div class="tab">
  <div class="dt">
    <span data-index="0" class="active">html</span>
    <span data-index="1">css</span>
    <span data-index="2">js</span>
    <span data-index="3">jQuery</span>
  </div>
  <div>
    <div class="card show">
      <h1>html</h1>
      <h1>html</h1>
      <h1>html</h1>
      <h1>html</h1>
    </div>
    <div class="card">
      <h2>css</h2>
      <h2>css</h2>
      <h2>css</h2>
      <h2>css</h2>
    </div>
    <div class="card">
      <h3>js</h3>
      <h3>js</h3>
      <h3>js</h3>
      <h3>js</h3>
      <h3>js</h3>
    </div>
    <div class="card">
      <h1>jQuery</h1>
      <h1>jQuery</h1>
      <h1>jQuery</h1>
    </div>
  </div>
</div>




<script src="js/jquery.js"></script>
<script src="js/index.js"></script>
</body>
</html>
